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Finding the Fourth Proportional to 60,353.64, 90,399.42 and 36,909

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Solution

The fourth proportional to 60,353.64, 90,399.42 and 36,909 is: 55,283.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,353.64 : 90,399.42 = 36,909 : x
  2. Step 2: Convert to fraction form
    60,353.64/90,399.42 = 36,909/x
  3. Step 3: Cross multiply
    60,353.64x = 90,399.42 × 36,909
  4. Step 4: Simplify right side
    60,353.64x = 3,336,552,192.78
  5. Step 5: Solve for x
    x = 3,336,552,192.78/60,353.64
  6. Step 6: Final answer
    x = 55,283.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.